X x gas gas or water regulator



(No Model!) B; FRANKLIN.

GAS 0R WATER REGULATOR.

No. 334,011. Patented Jan. 12,1886.

I m/enmr w Z Z k w G F 7 w 1 n a m h UNITED STATES PATENT OFFICE.

BENJAMIN FRANKLIN, OF BRADFORD, PENNSYLVANIA.

GAS OR WATER- REGULATOR.

SPECIFICATION forming part of Letters Patent No. 334,011 dated January12, 1886. Application filed November 20, 1885. Serial No. 183,455. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, BENJAMIN FRANKLIN, a citizen of the United States,residing at Bradford, in the county of KcKean and State of Pennsylvania,have invented certain new and useful Improvements in Gas or WaterRegulators; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, forming part of this specification.

My invention relates to pressure-regulators for gas or water pipes; andit consists in the improvements hereinafter set forth and explained.

My invention is illustrated in the accompanying drawings, in whichFigure 1 is a longitudinal central section of my improvedpressure-regulator. Fig. 2 is a perspective view of my improved device.

Like letters refer to like parts in all the figures.

In constructing my improved pressure-regulator I preferably cast thebody A of the same in a single piece. This body A is provided, near oneend thereof,witha valve-seat, B, through the center of which I place ahollow valve, 0. This valve 0 is provided with a shoulder, 0, adapted tofit upon the seat B, and has in the portion D thereof which passesthrough the valve-seatB V-shaped slots E E, which extend nearly or quiteto the shoulder of the valve 0. Through the lower end of the body A, Icut a screw-thread, in which the adjusting-screw F operates. Thisadjustingscrew F supports a spiral spring, G, which extends from theshoulder F on the screw F to and into the valve 0, and tends to raisethe valve 0 off of its seat B, the screw F being so arranged that by theturning thereof the tension of the spring G may be increased ordiminished. In the end of the body A, I show a reducer, H, screwed intothe body A over the valve 0. This operates to prevent the valve 0 frombeing thrown off of its seat by the spring G. However, if the end of asupply-pipe is screwed directly into the end of the body A it willanswer the same purpose.

In the side of the body A below the valveseat B, I make an opening, I,adapted to receive a gas or water pipe to be screwed there- In operatingmy device it is screwed into a supply-pipe conveying gas, water, orother similar substance from a tank or reservoir to a point where thesame is to be used. The end of the body A is screwed to the supplypipeby means of the reducer H, and the discharge-pipe is screwed into theopening I. The tension of the spring G is then adjusted by means of thescrew F, so that it will support the valve 0, and sustain it in an openposition against the normal and ordinary pressure of the gas or fluidinthe supply-pipe upon the head of the valve 0 to a sufficient distance toadmit of the passage of a proper amount of such gas or fluid through theV- shaped openings E E of the valve. When, however, the pressure of thegas or fluid in the supply-pipe increases so that the pressure upon thehead of the valve 0 overcomes the resistance of the spring G, it tendsto close the valve, thereby decreasing the area of the openings E Eabove the valve-seat B, leaving smaller openings for the passage of thegas or fluid at such increased pressure, while a decrease of the normalpressure in the supplypipe relieves the pressure on the head of thevalve C, so that the spring G operates to force the valve G fartherback, thereby increasing the area of the openings E E above thevalveseat B for the passage of gas or water at such decreased pressure.In this manner the amount of gas or water which passes the valve 0 atvarying pressures in the supply-pipe is equalized, and substantially thesame, except when'the pressure in the supply-pipe upon the head of thevalve 0 is sufficiently great to entirely overcome the resistance of thespring G. When, however, the valve 0 is constructed for use as agas-regulator, the valve 0 is not fitted closely to the seat B, but. isso constructed that however tightly the valve 0 may be closed fromexcessive pressure a small amount of gas will continuously pass thevalve, so that if the gas is used for either lighting or fuel thepressure cannot close the valve so as 100 to cut off all of the supplyand entirely put out the light or fire.

Having thus fully described my invention 50 as to enable others skilledin the art to which it appertains to construct and use the same, what Iclaim as new, and desire to secure by Letters Patent of the UnitedStates, 1s-

1. The combination, in agas or water regulator, of a valve, 0, providedwith slots or openings E therein,with a valve-seat, B, andsustaining-spring G, substantially as and for the purpose set forth.

2. The combination, in a gas or water regulator, of a valve, 0, providedwith V-shaped openings or slots E, with a valve-seat, B, a

sustaining-spring, G, and adjusting-screw F,

substantially as and for the purpose set forth.-

3. The combination, in a gas or water regulator, of the body A thereofprovided with a valve-seat, B, substantially as shown, with a hollowvalve, 0, provided with V shaped slots or openings E, thesustaining-spring G. and regulating-screw F, substantially as and forthe purpose set forth. a

In testimony whereof I afiix my signature in presence of two witnesses.

BENJAMIN FRANKLIN.

Witnesses:

GEo. A. STURGEON, DAVID STERRETT.

